2-Pin Ridged Roof Frame Design by Graphic Statics

In the design of Rigid Jointed Frames of which 2-Pin Ridged Roof Frames form an important part, there are two methods that are in common use by the designer. The methods referred to are:
(1) The Tabular Strain Energy method.
(2) The method of Distributing Fixed End Moments, by Prof. Hardy Cross
Hugh Fraser